Applying and interpreting these factors requires significant attention because they boil down all of the data in a profile to a single number. The estimated value can be significantly influenced by small adjustments to the physics of the measurement, the mean line calculation, and the raw profile data filtering. The scan can be examined to verify sure there are no evident errors that skew the values using sophisticated digital technology.

A simulation tool enables a user to alter important parameters and visualize how surfaces that are visibly distinct to the human eye are differentiated by the measurements. This is helpful because it may not be evident to many users what each of the measures really signify. Ra, for instance, is unable to tell the difference between two surfaces, one of which is made up of peaks on an otherwise smooth surface and the other of which is made up of troughs with the same amplitude. These utilities are available as apps.

NextGen’s SR200-T & NG-SR300-T Roughness Testers have large internal memory: 100 groups of original data and waveform can be stored & real-time clock setting and display, convenient for data recording and storage.

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